| MU Jingli,WANG Juying,WANG Ying,CONG Yi,ZHANG Zhifeng. 2014. Probabilistic ecological risk assessment of cadmium in the Bohai Sea using native saltwater species. Acta Oceanologica Sinica, 33(12):212－221 |
| Probabilistic ecological risk assessment of cadmium in the Bohai Sea using native saltwater species |
| 基于我国海洋生物区系特征的渤海表层水体中镉的概率生态风险评估 |
| Received:July 18, 2013 Revised:December 24, 2013 |
| DOI：10.1007/s13131-014-0575-6 |
| Key words:Bohai Sea cadmium PNEC SSD probabilistic ecological risk assessment |
| 中文关键词: 渤海 镉 预测无效应浓度 物种敏感性分布 概率生态风险评估 |
| 基金项目:The National Natural Science Foundation of China under contract No. 41106089; the National Key Technology Research and Development Program of the Ministry of Science and Technology of China under contract No. 2010BAC69B01; the Scientific Research Special Fund of Marine Public Welfare Industry under contract No. 201005008-1. |
| Author Name | Affiliation | E-mail | | MU Jingli | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China
National Marine Environmental Monitoring Center, Dalian 116023, China | | | WANG Juying | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China
National Marine Environmental Monitoring Center, Dalian 116023, China | jywang@nmemc.gov.cn | | WANG Ying | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China
National Marine Environmental Monitoring Center, Dalian 116023, China | | | CONG Yi | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China
National Marine Environmental Monitoring Center, Dalian 116023, China | | | ZHANG Zhifeng | Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China
National Marine Environmental Monitoring Center, Dalian 116023, China | |
|
| Hits: 2505 |
| Download times: 3207 |
| Abstract: |
| Predicted no-effect concentration (PNEC) is often used in ecological risk assessment to determine low-risk concentrations for chemicals. In the present study, the chronic data from native saltwater species were used to calculated PNEC values using four methods: log-normal distribution (ETX 2.0), log-triangle distribution (US EPA's water quality criteria procedure), burr III distribution (BurrliOZ) and traditional assessment factor (AF). The PNECs that were calculated using four methods ranged from 0.08 μg/L to 1.8 μg/L. Three of the SSD-derived PNECs range from 0.94 to 1.8 μg/L, about a factor of two apart. To demonstrate the use of SSD-based PNEC values and comprehensively estimate the regional ecological risk for cadmium in surface water of the Bohai Sea, in the Liaodong Bay, Bohai Bay, and Laizhou Bay, China, the dissolved cadmium concentrations were measured and obtained 753 valid data covering 190 stations from July 2006 to November 2007. Based on three ecological risk assessment approaches, namely hazard quotient (HQ), probabilistic risk quotient and joint probability curve (JPC), the potential ecological risk of cadmium in surface water of the Liaodong Bay, Bohai Bay, and Laizahou Bay were estimated. Overall, the ecological risk of cadmium to aquatic ecosystem in the whole Bohai Sea was at acceptable ecological risk level, the order of ecological risk was Liaodong Bay>Bohai Bay>Laizhou Bay. However, more concerns should be paid to aquatic ecological risk in the Liaodong Bay which is the home of many steel, metallurgy and petrochemical industrial in China. |
| 中文摘要: |
| 预测无效应浓度(Predicted no-effect concentration, PNEC)是开展污染物生态风险评估的关键参数.本研究在筛选确定符合我国海洋生物区系特征的慢性毒性数据基础上,采用log-normal、log-triangle distribution、burr Ⅲ distribution (BurrliOZ)三种物种敏感性分布曲线法和评价因子法等四种方法推导了镉的PNEC值.四种方法所推导的PNEC值为0.08 ~ 1.8 μg/L,其中基于SSD方法的PNEC为0.94~1.8 μg/L.同时为评估渤海表层水体中溶解态镉的生态风险,本研究收集了自2006年7月至2007年11月共190个站位753组镉的浓度数据.采用商值法、概率风险商值法和联合概率曲线法等3种方法对镉的生态风险进行了评估.结果显示,总体上渤海表层水体中镉的生态风险在可接受水平,其中辽东湾的风险相对较高,其次为渤海湾和莱州湾.商值概率分布法和联合概率分布法的评价结果具有确切的概率意义,更适合毒性数据丰富的污染物生态风险评价. |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|
